chrX-48792346-G-C

Variant names:

• chrX-48792346-G-C
• rs587776454
• NM_002049.4:c.622G>C

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PS1_Moderate PM1 PM2 PM5 PP3_Moderate

The NM_002049.4(GATA1):​c.622G>C​(p.Gly208Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely pathogenic in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G208S) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 23)
• Consequence: GATA1 NM_002049.4 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 8.12
• Publications: 16 publications found

Genes affected

GATA1 (HGNC:4170): (GATA binding protein 1) This gene encodes a protein which belongs to the GATA family of transcription factors. The protein plays an important role in erythroid development by regulating the switch of fetal hemoglobin to adult hemoglobin. Mutations in this gene have been associated with X-linked dyserythropoietic anemia and thrombocytopenia. [provided by RefSeq, Jul 2008]

GATA1 Gene-Disease associations (from GenCC):

• GATA1-Related X-Linked Cytopenia

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• thrombocytopenia, X-linked, with or without dyserythropoietic anemia

  Inheritance: XL Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• beta-thalassemia-X-linked thrombocytopenia syndrome

  Inheritance: XL Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
• Diamond-Blackfan anemia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• cutaneous porphyria

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• thrombocytopenia with congenital dyserythropoietic anemia

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• X-linked dyserythropoetic anemia with abnormal platelets and neutropenia

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000232828 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PS1: Transcript NM_002049.4 (GATA1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar.
• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 2 uncertain in NM_002049.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrX-48792346-GG-TC is described in ClinVar as Pathogenic. ClinVar VariationId is 10425.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.915

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATA1	NM_002049.4	c.622G>C	p.Gly208Arg	missense_variant	Exon 4 of 6	ENST00000376670.9	NP_002040.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA1	ENST00000376670.9	c.622G>C	p.Gly208Arg	missense_variant	Exon 4 of 6	1	NM_002049.4	ENSP00000365858.3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 23

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

Thrombocytopenia, X-linked, with or without dyserythropoietic anemia Other:1

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GeneReviews

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.60
CADD	Uncertain	25
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.98	D;D
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Pathogenic	0.83	D
MetaRNN	Pathogenic	0.91	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.4	M;.
PhyloP100		8.1
PrimateAI	Pathogenic	0.87	D
PROVEAN	Pathogenic	-7.7	D;D
REVEL	Pathogenic	0.92
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		0.99	D;.
Vest4		0.63
MutPred		0.78		Gain of MoRF binding (P = 0.0349);Gain of MoRF binding (P = 0.0349);
MVP		1.0
MPC		3.3
ClinPred		1.0	D
GERP RS		3.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.6
Varity_R		0.93
gMVP		0.95
Mutation Taster		=6/94	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs587776454; hg19: chrX-48650753;